Implement optional Hyper 1 support in hyper-boring #910

Job	Run time
rustfmt	3s
Cross build from macOS to Linux (x86_64-unknown-linux-gnu)	1m 58s
Cross build from macOS to Linux (FIPS) (x86_64-unknown-linux-gnu)	5m 47s
clippy	5m 47s
Test features	7m 5s
Test (stable)	2m 3s
Test (arm-android)	1m 59s
Test FIPS integration	2m 44s
Test (arm64-android)	2m 6s
Test (i686-android)	2m 13s
Test (x86_64-android)	1m 57s
Test (aarch64-ios)	2m 34s
Test (aarch64-ios-sim)	2m 41s
Test (x86_64-ios)	2m 38s
Test (i686-linux)	2m 19s
Test (arm-linux)	2m 22s
Test (aarch64-linux)	2m 41s
Test (arm64-macos)	2m 17s
Test (x86_64-macos)	2m 36s
Test (x86_64-mingw)	4m 47s
Test (i686-msvc)	7m 14s
Test (x86_64-msvc)	4m 58s
	1h 10m 49s

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